(19)

(11)

EP 1 687 690 A2

(12)

(43) Date of publication: 09.08.2006 Bulletin 2006/32 (21) Application number: 04811621.4 (22) Date of filing: 19.11.2004

(51) International Patent Classification (IPC):  G06F 1/00(2006.01) (86) International application number: PCT/US2004/038930 (87) International publication number: WO 2005/052745 (09.06.2005 Gazette 2005/23)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK YU (30) Priority: 21.11.2003 US 523972 P 21.11.2003 US 524138 P (71) Applicant: Optive Research, Inc. Austin, TX 78727 (US)	(72) Inventor: PEARLMAN, Robert, S. Austin, TX 78727 (US) (74) Representative: Wörz, Volker Alfred  Dreiss, Fuhlendorf, Steimle & Becker, Postfach 10 37 62 70032 Stuttgart 70032 Stuttgart (DE)